Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887157 | Method and apparatus for improving the resolution of digital signals | Herbert Schutze | 1989-12-12 |
| 4860097 | Transformation circuit | Werner Keesen, Herbert Schutze | 1989-08-22 |
| 4814871 | Method for the transmission of a video signal | Heinz-Werner Keesen | 1989-03-21 |
| 4807033 | Method for correcting television signals | Werner Keesen, Dietrich Westerkamp | 1989-02-21 |